Pedestrians' big debut in traffic simulation - PTV America
Pedestrians' big debut in traffic simulation - PTV America
Pedestrians' big debut in traffic simulation - PTV America
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Traffic / <strong>PTV</strong> AG<br />
Committed to Improv<strong>in</strong>g Traffic Safety<br />
Despite the fact that the number of road accident<br />
victims has decreased <strong>in</strong> the European Union, it<br />
seems to be difficult to reach EU’s target of halv<strong>in</strong>g<br />
the number of road deaths by 2010. There are still<br />
too many car accident fatalities. It is therefore essential<br />
to <strong>in</strong>clude <strong>traffic</strong> safety concepts <strong>in</strong> the <strong>traffic</strong> and<br />
transportation plann<strong>in</strong>g process. <strong>PTV</strong>’s transportation<br />
experts have developed a specific tool which contributes<br />
to road safety by provid<strong>in</strong>g important analysis<br />
data on Germany’s road network.<br />
Build<strong>in</strong>g safe roads is another relevant road safety factor.<br />
This <strong>in</strong>cludes the construction, expansion and improvement<br />
of roads. The first step is to identify the size and<br />
distribution of safety potential with<strong>in</strong> the road network.<br />
Germany’s Road Traffic Research Association issued a new<br />
directive called Empfehlungen für die Sicherheitsanalyse<br />
von Straßennetzen, which provides recommendations<br />
for the safety analysis of road networks.<br />
The ESN directive provides guidel<strong>in</strong>es and calcula-<br />
tion rules for estimat<strong>in</strong>g the road safety performance.<br />
It helps the road construction authority identify road<br />
sections which need to be analysed <strong>in</strong> detail and<br />
which can be considerably improved. German Insurers<br />
Accident Research (GDV) asked <strong>PTV</strong> to develop a specific<br />
ESN tool as part of a road accident research project.<br />
The aim was to provide pragmatic methods for<br />
an efficient analysis of the huge amount of data. The<br />
recommendations were applied to the state of Saxony,<br />
Germany.<br />
A numerical safety potential is determ<strong>in</strong>ed on the basis<br />
of road accident data (categories, location, types of accidents,<br />
time and date, etc.) and empirically developed<br />
accident <strong>in</strong>dicators, such as accident rates and average<br />
accident costs. Traffic eng<strong>in</strong>eer<strong>in</strong>g tools, i.e. specific<br />
plann<strong>in</strong>g tools for network analysis and accident data<br />
analysis are comb<strong>in</strong>ed to make road networks safer.<br />
Information about the average workday <strong>traffic</strong> volume<br />
on the roads where accidents occurred is an important<br />
factor for the ESN calculations. Therefore, <strong>PTV</strong>’s<br />
Validate transportation model for Germany was <strong>in</strong>tegrated<br />
<strong>in</strong>to the ESN calculation process to provide<br />
workday <strong>traffic</strong> volumes for the entire ma<strong>in</strong> road network<br />
of Germany.<br />
The ESN tool processes the data and visualises the re-<br />
sults <strong>in</strong> a clear and efficient manner. Easy and exact<br />
results analysis and high quality evaluations pro-<br />
vide immediate access to network-related <strong>in</strong>formation<br />
about the accident.<br />
ESN – display of results based on road sections<br />
comb<strong>in</strong>ed with NAVTEQ road sections<br />
<strong>PTV</strong> tool helps create<br />
safer road networks<br />
TRAFFIC – NEWS<br />
COMPASS INTERNATIONAL 01/2008 09